This temperature-signaling lacquer permanently changes colors after 5 minutes of continuous exposure to various temperatures.* Other brands require different paints for various temperature levels, but this single paint changes color at different temperatures. Just paint on one test spot and wait for the color change.
Nine distinct color changes** signal the following temperatures:
Below 360° C (680° F): Brick red
360° C (680° F): Red/brown
430° C (806° F): Brown
580° C (1076° F): Yellow
720° C (1328° F): Lime green
800° C (1472° F): Beige
910° C (1670° F): Tan**
1220° C (2228° F): Mottled Tan**
1270° C (2318° F): Black**
Applicator brush in cap means less mess and clean-up. 1 fluid ounce plastic jar has a color code chart printed right on the label.**
This paint has a high solids content in order to dry quickly when applied. The solids can settle out of the solution after sitting for long periods. If this happens, simply re-mix the paint, adding a small amount of xylene (or lacquer thinner) if necessary.
* Slightly lower temperatures can also cause these color changes with longer exposure times. Increasing the exposure time from 5 minutes to 30 minutes will lower the temperature required by approximately 10%. The paint is essentially inert below 300° C (572° F) so it can be applied to parts well in advance of use.
** Because this paint is marketed for use with racing brake pads which generally operate below about 900C, these colors are not shown on the label.